85005218 has 8 divisors (see below), whose sum is σ = 130617900. Its totient is φ = 41465920.

The previous prime is 85005211. The next prime is 85005227. The reversal of 85005218 is 81250058.

It can be written as a sum of positive squares in 2 ways, for example, as 66797929 + 18207289 = 8173^2 + 4267^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (85005211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518243 + ... + 518406.

Almost surely, 2^85005218 is an apocalyptic number.

85005218 is a deficient number, since it is larger than the sum of its proper divisors (45612682).

85005218 is a wasteful number, since it uses less digits than its factorization.

85005218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036692.

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 85005218 is about 9219.8274387322. The cubic root of 85005218 is about 439.6919641522.

The spelling of 85005218 in words is "eighty-five million, five thousand, two hundred eighteen".